{"title":"Hydroponics \u0026 Self-Watering","description":"\u003cp\u003eGrow more with less watering. Self-watering planters and simple hydroponic systems keep your plants topped up, so they keep thriving even when life gets busy.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eHydroponic growing is clean, soil-free and surprisingly easy. It's a wonderful way for children to see roots growing and learn how plants feed.\u003c\/p\u003e","products":[{"product_id":"spider-farmer-smartg12-indoor-herb-garden","title":"Spider Farmer SmartG12 Indoor Herb Garden with Grow Light","description":"\u003cp\u003eThe Spider Farmer SmartG12 is an \u003cstrong\u003eindoor herb garden with grow light\u003c\/strong\u003e that sits on the kitchen worktop and grows twelve little pots of basil, parsley, lettuce and leafy greens, with no soil, no mud and no slugs.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eFill the 6 litre bowl, pop the seeds into their sponges, choose a mode on the app and let the light and the quiet pump do the rest. The children can watch roots and leaves appear in the space between breakfast and tea.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch2\u003eA 12-pod indoor herb garden with grow light for the kitchen\u003c\/h2\u003e\n\u003cp\u003eTwelve pods is enough for a proper supply: a row of basil for pasta night, a few lettuces for lunchboxes and some coriander or chives for scattering. The light post rises from 28cm to 70cm, so it lifts as the plants grow and nothing gets squashed.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eThe pump hums at about 20dB, quieter than the fridge, and the bowl lifts out for washing. If you go away for a few days, Vacation Mode keeps the light and watering ticking over until you are home.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhat you can grow on the worktop\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBasil, parsley, coriander, mint, chives and other kitchen herbs\u003c\/li\u003e\n\u003cli\u003eLoose-leaf lettuce, rocket, pak choi and baby salad leaves\u003c\/li\u003e\n\u003cli\u003eLeafy greens such as spinach and kale for picking young\u003c\/li\u003e\n\u003cli\u003eA lovely home education project on roots, light and water\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eHow the SmartG12 looks after your herbs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e36W full-spectrum light.\u003c\/strong\u003e A wide LED bar on an adjustable post gives even light over all twelve pods, with a 0 to 24 hour timer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApp and Wi-Fi control.\u003c\/strong\u003e Six preset vegetable modes plus five custom ones, water level checks and reminders on your phone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet 2W pump.\u003c\/strong\u003e Moves water and oxygen round the roots with a T-sprinkler, so each pod stays evenly fed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6 litre lift-out bowl.\u003c\/strong\u003e Big enough to leave for days at a time and easy to rinse at the sink.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDomes and pod covers.\u003c\/strong\u003e Clear domes help seeds germinate; covers tidy away any spaces you are not using.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eIndoor herb garden questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDo indoor herb gardens with grow lights actually work?\u003c\/strong\u003e\u003cbr\u003e\nYes. Herbs and salad leaves need steady light more than anything, and the SmartG12 gives them up to 24 hours of it on a timer, so they grow happily even through a grey British winter.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat can you grow in a hydroponic herb garden?\u003c\/strong\u003e\u003cbr\u003e\nMost soft herbs and leafy salads thrive: basil, parsley, coriander, mint, chives, lettuce, rocket and pak choi. Tall or fruiting crops such as tomatoes are better in a bigger setup.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eAre seeds included?\u003c\/strong\u003e\u003cbr\u003e\nBring your own seeds; any herb or salad seed packet will do. You get 12 sponges, baskets, domes and covers ready to plant.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow often do I top up the water?\u003c\/strong\u003e\u003cbr\u003e\nThe 6 litre bowl usually lasts several days, depending on how many plants are growing. The app tells you when the level drops.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eThe details\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall size\u003c\/th\u003e\n\u003ctd\u003e41.75 × 25.6 × 73.4cm (W × D × H, light at full height)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLight post height\u003c\/th\u003e\n\u003ctd\u003eAdjustable, 28cm to 70cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGrow light\u003c\/th\u003e\n\u003ctd\u003e36W full-spectrum LED, dimmable, 0 to 24 hour timer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater bowl\u003c\/th\u003e\n\u003ctd\u003e6 litres, removable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump\u003c\/th\u003e\n\u003ctd\u003e2W, about 20dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePods\u003c\/th\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eWi-Fi app plus on-unit controls, 6 preset and 5 custom modes, Vacation Mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSpider Farmer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhat’s in the kit\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eQuantity and measurements\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e36W LED light bar\u003c\/td\u003e\n\u003ctd\u003e1, dimmable full-spectrum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight post\u003c\/td\u003e\n\u003ctd\u003e1, adjusts 28cm to 70cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHost base\u003c\/td\u003e\n\u003ctd\u003e1, 41.75 × 25.6cm footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater bowl\u003c\/td\u003e\n\u003ctd\u003e1, 6 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower adapter\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlant baskets\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrow sponges\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGermination domes\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePod covers\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-sprinkler\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater injection cover\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHydroponic nutrient\u003c\/td\u003e\n\u003ctd\u003eA and B bottles, 1 each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cp\u003eEverything listed above, plus a user manual. Seeds are not included.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eFresh herbs at arm’s reach, all year round. That’s the kind of kitchen we love.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Spider Farmer","offers":[{"title":"Default Title","offer_id":60145993580928,"sku":"SFG12SG","price":129.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6529\/3075\/files\/SpiderFarmerSmartG12HydroponicGardeningSystemKit01.png?v=1792303987"},{"product_id":"spider-farmer-2-bucket-dwc-hydroponics-kit","title":"Spider Farmer 2-Bucket DWC Hydroponics Kit for Tomatoes and Chillies","description":"\u003cp\u003eThis Spider Farmer \u003cstrong\u003eDWC hydroponics kit\u003c\/strong\u003e grows two big plants in bubbling, oxygen-rich water instead of soil. It is a brilliant way to grow generous tomatoes, chillies or courgettes in a conservatory, greenhouse or bright corner.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eDWC stands for deep water culture. The roots hang into the water, an air pump keeps it fizzing with oxygen, and a drip ring waters young plants from the top until their roots reach down. It is simple, tidy and fascinating to watch.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch2\u003eA two-plant DWC hydroponics kit for big, happy crops\u003c\/h2\u003e\n\u003cp\u003eEach 7 gallon (26.5 litre) bucket holds plenty of water, so the plants drink deeply without daily top-ups. The flip-up triangle lid lets you check and refill without lifting the plant, and the level tube shows the water at a glance.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eChildren love seeing the white roots grow through the net cup. It turns a summer of tomatoes into a living science lesson.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhat you can grow in DWC buckets\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCordon or bush tomatoes, one per bucket\u003c\/li\u003e\n\u003cli\u003eChillies and sweet peppers\u003c\/li\u003e\n\u003cli\u003eCourgettes, cucumbers and aubergines\u003c\/li\u003e\n\u003cli\u003eBig leafy plants such as kale and chard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eHow the Spider Farmer buckets work\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo 26.5 litre buckets.\u003c\/strong\u003e Tough polypropylene, 30.2 × 30.2 × 50cm, with a deep, stable water supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriangle flip lid.\u003c\/strong\u003e Open one corner to add water, check levels or test without disturbing roots.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePowerful 8W air pump.\u003c\/strong\u003e Four outlets at up to 63.4 gallons an hour each keep the water full of oxygen.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable drip rings.\u003c\/strong\u003e Top watering for seedlings, so they settle in before roots reach the water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck valves.\u003c\/strong\u003e Stop water running back into the pump during a power cut.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eDWC hydroponics questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs DWC hydroponics good for beginners?\u003c\/strong\u003e\u003cbr\u003e\nYes, it is one of the simplest systems: a bucket, an air pump and a net cup. Keep the pump running and top up the water, and plants grow quickly.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eCan you grow tomatoes hydroponically at home?\u003c\/strong\u003e\u003cbr\u003e\nAbsolutely. Tomatoes love the steady water and oxygen. Give them a sunny spot or a grow light, and support tall varieties with a cane.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should you change the water in a DWC bucket?\u003c\/strong\u003e\u003cbr\u003e\nMost growers refresh it every one to two weeks, topping up with fresh water in between.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it come with a light?\u003c\/strong\u003e\u003cbr\u003e\nNo. Place it in a greenhouse, conservatory or sunny room, or pair it with a grow light.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eThe details\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBuckets\u003c\/th\u003e\n\u003ctd\u003e2 × 7 gallon (26.5 litre), 30.2 × 30.2 × 50cm, 31cm top diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePolypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNet cups\u003c\/th\u003e\n\u003ctd\u003e6 inch (15cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir pump\u003c\/th\u003e\n\u003ctd\u003e8W, 4 outlets, up to 63.4 gallons (240 litres) an hour per outlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir tubing\u003c\/th\u003e\n\u003ctd\u003e6m, 4\/6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpace needed\u003c\/th\u003e\n\u003ctd\u003eAbout 70cm wide for both buckets and the pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003eUK 220–240V, UK plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSpider Farmer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhat’s in the kit\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eQuantity and measurements\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuckets\u003c\/td\u003e\n\u003ctd\u003e2, 26.5 litres, 30.2 × 30.2 × 50cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTriangle lids\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet cups\u003c\/td\u003e\n\u003ctd\u003e2, 6 inch (15cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir pump\u003c\/td\u003e\n\u003ctd\u003e1, 8W, 4 outlets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir tubing\u003c\/td\u003e\n\u003ctd\u003e6m, 4\/6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir stones\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrip rings\u003c\/td\u003e\n\u003ctd\u003e2, adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater level tubes\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCheck valves\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClay pebbles\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cp\u003eEvery part listed above. Plants and nutrients are sold separately. Rinse the clay pebbles before use.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eTwo buckets, two big plants and a summer of picking. Lovely.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Spider Farmer","offers":[{"title":"Default Title","offer_id":60145993679232,"sku":"SFDWC2","price":79.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6529\/3075\/files\/SpiderFarmer2PieceDWCHydroponicsGrowSystem01.png?v=1792303988"},{"product_id":"mars-hydro-2-bucket-dwc-hydroponic-system","title":"Mars Hydro 2-Bucket DWC Hydroponic System with Drip Rings","description":"\u003cp\u003eThe Mars Hydro \u003cstrong\u003eDWC bucket system\u003c\/strong\u003e grows two plants in oxygen-rich water, with top-feed drip rings to give seedlings a gentle start. It is a neat, soil-free way to grow tomatoes, chillies and peppers in a greenhouse or bright room.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eFill the buckets, set the drippers running for young plants, then switch them off once the roots reach the water. The air pump keeps everything bubbling, and the floating level indicator shows when to top up.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch2\u003eA DWC bucket system with drip rings for a gentle start\u003c\/h2\u003e\n\u003cp\u003eThe wide 8 inch net pots give each plant room to anchor its roots, and reflective covers on the lids keep light off the water so algae can’t grow.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eThere is no digging and no compost to carry, which makes it a lovely option for patios, balconies and conservatories.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003ePlants that love these buckets\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTomatoes, one strong plant per bucket\u003c\/li\u003e\n\u003cli\u003eChillies, peppers and aubergines\u003c\/li\u003e\n\u003cli\u003eCucumbers and courgettes\u003c\/li\u003e\n\u003cli\u003eBasil and leafy greens grown large\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhy these buckets suit beginners\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitchable drip rings.\u003c\/strong\u003e Top-feed young plants, then turn the drippers off once roots reach the water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 inch net pots.\u003c\/strong\u003e A wide, sturdy collar for each plant, filled with the clay pebbles supplied.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8W air pump.\u003c\/strong\u003e 7 litres of air a minute through two air stones keeps roots white and healthy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloating level indicators.\u003c\/strong\u003e See the water level at a glance, no lid lifting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReflective lid covers.\u003c\/strong\u003e Keep light out of the water to stop algae.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eDWC bucket questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size bucket is best for DWC?\u003c\/strong\u003e\u003cbr\u003e\nA 5 gallon (about 19 litre) bucket suits one tomato or chilli plant, holding enough water for several days in summer.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDo you need a drip ring in DWC?\u003c\/strong\u003e\u003cbr\u003e\nIt helps young plants. Before roots reach the water, the drip ring keeps the pebbles and root zone moist.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should you change DWC water?\u003c\/strong\u003e\u003cbr\u003e\nEvery one to two weeks is usual, with top-ups of fresh water in between.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs a grow light included?\u003c\/strong\u003e\u003cbr\u003e\nNo. Use a sunny spot, greenhouse or conservatory, or pair it with a grow light.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eThe details\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBuckets\u003c\/th\u003e\n\u003ctd\u003e2 × 5 gallon (about 19 litre), 39.88cm tall, 34.04cm outer diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNet pots\u003c\/th\u003e\n\u003ctd\u003e2 × 8 inch (20cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir pump\u003c\/th\u003e\n\u003ctd\u003e8W, 7 litres per minute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir tubing\u003c\/th\u003e\n\u003ctd\u003e4m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrip system\u003c\/th\u003e\n\u003ctd\u003e2 top-feed drip rings, switchable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003eUK 220–240V, UK plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePolypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eMars Hydro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhat’s in the kit\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eQuantity and measurements\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuckets\u003c\/td\u003e\n\u003ctd\u003e2, 5 gallon, 39.88cm tall, 34.04cm diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet pots\u003c\/td\u003e\n\u003ctd\u003e2, 8 inch (20cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrip rings\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir pump\u003c\/td\u003e\n\u003ctd\u003e1, 8W, 7L\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir stones\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir tubing\u003c\/td\u003e\n\u003ctd\u003e4m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClay pebbles\u003c\/td\u003e\n\u003ctd\u003e2 bags\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater level indicators\u003c\/td\u003e\n\u003ctd\u003e2, floating ball\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCheck valves\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReflective lid covers\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectors and fittings\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cp\u003eEvery part listed above, plus an instruction manual. Plants and nutrients are sold separately.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eClean, calm, soil-free growing. Your tomatoes will thank you.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Mars Hydro","offers":[{"title":"Default Title","offer_id":60145993744768,"sku":"MHDWCHSK","price":79.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6529\/3075\/files\/Mars_Hydro_DWC_Hydroponics_-_2_Plant_Set_Up_01.png?v=1792303990"},{"product_id":"grow-gadgets-digital-ec-meter-pen","title":"Grow Gadgets Digital EC Meter Pen","description":"\u003cp\u003eThe Grow Gadgets pen is a simple \u003cstrong\u003eEC meter for hydroponics\u003c\/strong\u003e that tells you how strong your feed is. Dip it in, and in a few seconds you know whether the water is too weak, too rich or just right.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eIt takes the worry out of feeding herbs, salad and tomatoes, and it is a small, friendly tool that fits in a pocket.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch2\u003eA one-button EC meter for hydroponics and feeding\u003c\/h2\u003e\n\u003cp\u003eEC stands for electrical conductivity. Clean water barely conducts at all, and the more feed you dissolve, the higher the reading climbs, so it is a quick way to check your mix.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eIt comes pre-calibrated with automatic temperature compensation and a little carry case, so it is ready to use the moment it arrives.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhat you can check with an EC pen\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFeed strength in a countertop hydroponic garden or DWC bucket\u003c\/li\u003e\n\u003cli\u003eTap water and rainwater before you add any feed\u003c\/li\u003e\n\u003cli\u003eLiquid feed for tomatoes and chillies in pots\u003c\/li\u003e\n\u003cli\u003eSalt levels in a self-watering reservoir over time\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhy this EC pen is a good first meter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide range.\u003c\/strong\u003e 0 to 9,990µS\/cm, which covers everything from rainwater to strong feed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccurate.\u003c\/strong\u003e ±2%, with automatic temperature compensation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-calibrated.\u003c\/strong\u003e Ready to use straight from the box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable.\u003c\/strong\u003e A small screwdriver is included for calibrating later.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eButton cell powered.\u003c\/strong\u003e Replaceable battery and a protective carry case.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eEC meter questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat EC should hydroponic water be?\u003c\/strong\u003e\u003cbr\u003e\nHerbs and salad usually like a gentle EC of about 0.8 to 1.6mS\/cm (800 to 1,600µS\/cm). Tomatoes and chillies like a little more. Follow your feed’s chart.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I calibrate an EC meter?\u003c\/strong\u003e\u003cbr\u003e\nDip it in an EC calibration solution such as 1.413mS\/cm and adjust the screw until it matches. Check it every month or so.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use it for soil?\u003c\/strong\u003e\u003cbr\u003e\nIt reads liquids. Test the water running out of a pot, or mix compost with distilled water and test that.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I look after it?\u003c\/strong\u003e\u003cbr\u003e\nRinse the probe with clean water after use and store it dry in the case.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eThe details\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasures\u003c\/th\u003e\n\u003ctd\u003eElectrical conductivity (EC) of water and liquid feed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRange\u003c\/th\u003e\n\u003ctd\u003e0 to 9,990µS\/cm (0 to 9.99mS\/cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAccuracy\u003c\/th\u003e\n\u003ctd\u003e±2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTemperature compensation\u003c\/th\u003e\n\u003ctd\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCalibration\u003c\/th\u003e\n\u003ctd\u003ePre-calibrated; adjustment screwdriver included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003eReplaceable button cell battery; no mains plug needed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eGrow Gadgets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cp\u003eOne digital EC pen, protective cap, calibration screwdriver and carry case.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eJust the right feed, every time. Your plants will notice.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Grow Gadgets","offers":[{"title":"Default Title","offer_id":60146785255808,"sku":"GGECMD","price":19.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6529\/3075\/files\/ecpen-00.jpg?v=1793882021"},{"product_id":"spider-farmer-5-in-1-ph-ec-tds-meter","title":"Spider Farmer 5-in-1 pH, EC and TDS Meter for Hydroponics","description":"\u003cp\u003eThe Spider Farmer 5-in-1 is a \u003cstrong\u003epH meter for hydroponics\u003c\/strong\u003e that also reads EC, TDS, water temperature and salt, all from one waterproof pen. Dip, wait a few seconds, and you know exactly what your plants are drinking.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eIt is the friendliest way to look after a hydroponic garden, a bucket of tomatoes or a tank of rainwater, and children love being the official water scientist.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch2\u003eA pH meter for hydroponics that reads five things at once\u003c\/h2\u003e\n\u003cp\u003eThe backlit screen shows pH and TDS side by side, so you can check acidity and feed strength together. Automatic temperature compensation keeps readings honest whether the water is cool or warm.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eIt charges by USB-C, so there are no fiddly batteries, and one charge lasts for months of occasional checks.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhat you can test with it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe water in a countertop hydroponic garden or DWC bucket\u003c\/li\u003e\n\u003cli\u003eTap water and rainwater before feeding houseplants\u003c\/li\u003e\n\u003cli\u003eFeed strength in watering cans and self-watering reservoirs\u003c\/li\u003e\n\u003cli\u003ePond or aquarium water, for a lovely home education project\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhy we like the Spider Farmer meter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive readings.\u003c\/strong\u003e pH, EC, TDS, temperature and salinity in one pen.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccurate.\u003c\/strong\u003e ±0.05 pH, with ±2% on EC and TDS readings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP67 sealed.\u003c\/strong\u003e Waterproof and dustproof, with a cap to protect the probe.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRechargeable.\u003c\/strong\u003e 600mAh battery charged by USB-C, rated for about 300 charges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibration included.\u003c\/strong\u003e Buffer powders at pH 4.00, 6.86 and 9.18 to keep it accurate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003epH meter questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat pH should hydroponic water be?\u003c\/strong\u003e\u003cbr\u003e\nMost herbs, salad and vegetables are happiest between pH 5.5 and 6.5. Check after adding feed, then adjust gently if needed.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between EC and TDS?\u003c\/strong\u003e\u003cbr\u003e\nBoth show how much feed is dissolved in the water. EC measures conductivity; TDS converts it into parts per million. Use whichever your feed chart gives.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should I calibrate a pH meter?\u003c\/strong\u003e\u003cbr\u003e\nEvery few weeks with regular use, or whenever readings seem odd. Mix the included powders with distilled water.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I look after the probe?\u003c\/strong\u003e\u003cbr\u003e\nRinse it in clean water after each use, keep the cap on and don’t let it dry out.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eThe details\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003ctd\u003e181 × 44 × 38mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003epH\u003c\/th\u003e\n\u003ctd\u003e0.01 to 14.00, resolution 0.01, accuracy ±0.05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEC\u003c\/th\u003e\n\u003ctd\u003e0 to 9,999µS\/cm and 10 to 200mS\/cm, accuracy ±2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTDS\u003c\/th\u003e\n\u003ctd\u003e0 to 9,990ppm and 10 to 200ppt, accuracy ±2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTemperature\u003c\/th\u003e\n\u003ctd\u003e0 to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSalinity\u003c\/th\u003e\n\u003ctd\u003e0 to 25%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRating\u003c\/th\u003e\n\u003ctd\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003e600mAh rechargeable battery, USB-C, 5V 1A; no mains plug needed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e1 year (Spider Farmer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhat’s in the kit\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eQuantity and measurements\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5-in-1 meter\u003c\/td\u003e\n\u003ctd\u003e1, 181 × 44 × 38mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB-C cable\u003c\/td\u003e\n\u003ctd\u003e1, 60cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH 4.00 calibration powder\u003c\/td\u003e\n\u003ctd\u003e1 sachet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH 6.86 calibration powder\u003c\/td\u003e\n\u003ctd\u003e1 sachet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH 9.18 calibration powder\u003c\/td\u003e\n\u003ctd\u003e1 sachet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser manual\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cp\u003eEverything listed above. A USB plug is not included; any phone charger works.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eClear water, happy roots, no guesswork. That’s the idea.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Spider Farmer","offers":[{"title":"Default Title","offer_id":60146785288576,"sku":"SF5I1MM","price":35.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6529\/3075\/files\/sf5in1-hero.jpg?v=1793881599"},{"product_id":"growth-technology-ec-calibration-solution-300ml","title":"Growth Technology EC Calibration Solution, 300ml","description":"\u003cp\u003eGrowth Technology \u003cstrong\u003eEC calibration solution\u003c\/strong\u003e is a liquid with a precise, known conductivity, so you can check that your EC meter is reading correctly and adjust it if it has drifted.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eIt is the quiet hero of hydroponic feeding. A correct EC reading means herbs and salad get the gentle feed they like, and tomatoes get a little more, without any guessing.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch2\u003eEC calibration solution for meters and pens\u003c\/h2\u003e\n\u003cp\u003eChoose 1.413mS\/cm, the most common calibration point and close to the gentle feed strengths herbs and salad enjoy, or 2.76mS\/cm for checking meters at stronger feed levels.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eEach comes in a 300ml bottle, enough for many calibrations if you pour out a little each time.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eWho needs EC calibration solution\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAnyone with an EC pen or 5-in-1 meter\u003c\/li\u003e\n\u003cli\u003eHydroponic gardeners feeding a countertop garden or DWC bucket\u003c\/li\u003e\n\u003cli\u003eTomato and chilli growers who feed by EC\u003c\/li\u003e\n\u003cli\u003eAnyone whose readings suddenly seem too high or low\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eHow to check your EC meter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePour a little into a clean cup.\u003c\/strong\u003e Keep the bottle pure by never dipping the meter straight in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRinse the probe.\u003c\/strong\u003e Use distilled water and shake it dry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDip and wait.\u003c\/strong\u003e Let the reading settle for a few seconds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjust to match.\u003c\/strong\u003e Set the meter to 1.413 or 2.76, depending on your bottle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiscard the used solution.\u003c\/strong\u003e Fresh solution each time keeps it accurate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eEC calibration questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich EC calibration solution do I need?\u003c\/strong\u003e\u003cbr\u003e\n1.413mS\/cm (1,413µS\/cm) suits most home meters. Choose 2.76mS\/cm if you mainly feed at higher strengths or your meter asks for it.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should I calibrate an EC meter?\u003c\/strong\u003e\u003cbr\u003e\nAbout once a month with regular use, and whenever readings look odd.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs EC calibration solution the same as pH buffer?\u003c\/strong\u003e\u003cbr\u003e\nNo. pH buffer checks acidity; EC solution checks conductivity. A 5-in-1 meter may need both.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow should I store it?\u003c\/strong\u003e\u003cbr\u003e\nKeep the cap tight, the bottle cool and out of sunlight.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eThe details\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eVariants\u003c\/th\u003e\n\u003ctd\u003e1.413mS\/cm, 300ml; 2.76mS\/cm, 300ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003eCalibrating and checking EC and TDS meters, pens and controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSuitable for\u003c\/th\u003e\n\u003ctd\u003eHydroponics, coco and soil growers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eGrowth Technology\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eSizes and measurements\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eStandard\u003c\/th\u003e\n\u003cth\u003eVolume\u003c\/th\u003e\n\u003cth\u003eTypical use\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1.413mS\/cm\u003c\/td\u003e\n\u003ctd\u003e300ml\u003c\/td\u003e\n\u003ctd\u003eMost home meters; gentle feed range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2.76mS\/cm\u003c\/td\u003e\n\u003ctd\u003e300ml\u003c\/td\u003e\n\u003ctd\u003eChecking meters at stronger feed levels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cp\u003eOne 300ml bottle of your chosen standard.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eFeed with confidence, every single time.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Growth Technology","offers":[{"title":"1.413 mS\/cm, 300ml","offer_id":60146785386880,"sku":"GTECS1413300","price":4.0,"currency_code":"GBP","in_stock":true},{"title":"2.76 mS\/cm, 300ml","offer_id":60146785419648,"sku":"GTECS276300","price":4.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6529\/3075\/files\/GrowthTechnologyECStandard01_1.png?v=1793884261"},{"product_id":"growth-technology-ph-buffer-solution-300ml","title":"Growth Technology pH Buffer Solution, pH 4 or pH 7, 300ml","description":"\u003cp\u003eGrowth Technology \u003cstrong\u003epH buffer solution for calibration\u003c\/strong\u003e keeps your pH pen honest. Each 300ml bottle holds a liquid with a fixed, known pH, so you can check your meter and correct it if it has drifted.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eEvery pH meter wanders a little over time. A quick check every few weeks means the numbers you see are the numbers your plants actually get.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch2\u003epH buffer solution for calibration, in pH 4 and pH 7\u003c\/h2\u003e\n\u003cp\u003epH 7.00 is neutral and is the first point most meters calibrate to. pH 4.00 is the second point, for meters that use two-point calibration and for checking accuracy on the acidic side, where most hydroponic feeds sit.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eBuy one of each for a full two-point calibration, or just the pH 7 if your pen only needs a single point.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eWho needs a pH buffer\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAnyone with a pH pen or 5-in-1 meter\u003c\/li\u003e\n\u003cli\u003eHydroponic gardeners checking a countertop garden or DWC bucket\u003c\/li\u003e\n\u003cli\u003eGrowers of acid lovers such as blueberries and camellias\u003c\/li\u003e\n\u003cli\u003eHome educators running water chemistry experiments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eHow to calibrate with Growth Technology buffer\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePour a little into a clean cup.\u003c\/strong\u003e Never dip the meter into the bottle itself, so the rest stays pure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRinse the probe first.\u003c\/strong\u003e Use distilled or clean water to avoid carrying anything across.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStart with pH 7.00.\u003c\/strong\u003e Dip, wait for the reading to settle, and adjust the meter to 7.00.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThen check pH 4.00.\u003c\/strong\u003e Rinse, dip and adjust again if your meter offers two-point calibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrow away the used solution.\u003c\/strong\u003e Used buffer is no longer reliable, so don’t pour it back.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003epH calibration questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should I calibrate my pH meter?\u003c\/strong\u003e\u003cbr\u003e\nEvery two to four weeks with regular use, and whenever readings seem strange.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need pH 4 and pH 7?\u003c\/strong\u003e\u003cbr\u003e\nMany meters calibrate at pH 7 and then pH 4 for best accuracy. Check your meter’s instructions; some only need one point.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does buffer solution last?\u003c\/strong\u003e\u003cbr\u003e\nKeep the cap tight and the bottle cool and out of sun. Once opened, use it within the period on the label.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eCan I reuse buffer solution?\u003c\/strong\u003e\u003cbr\u003e\nNo. Pour a small amount out for each calibration and discard it afterwards.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eThe details\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eVariants\u003c\/th\u003e\n\u003ctd\u003epH 4.00 buffer, 300ml; pH 7.00 buffer, 300ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003eCalibrating and checking pH meters, pens and controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSuitable for\u003c\/th\u003e\n\u003ctd\u003eHydroponics, coco and soil growers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eGrowth Technology\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eSizes and measurements\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBuffer\u003c\/th\u003e\n\u003cth\u003eVolume\u003c\/th\u003e\n\u003cth\u003eTypical use\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH 4.00\u003c\/td\u003e\n\u003ctd\u003e300ml\u003c\/td\u003e\n\u003ctd\u003eSecond calibration point, acidic range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH 7.00\u003c\/td\u003e\n\u003ctd\u003e300ml\u003c\/td\u003e\n\u003ctd\u003eFirst calibration point, neutral\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cp\u003eOne 300ml bottle of your chosen buffer.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eA small bottle that keeps every reading true. Clever.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Growth Technology","offers":[{"title":"pH 4.00, 300ml","offer_id":60146785583488,"sku":"GTPBSB4300","price":3.0,"currency_code":"GBP","in_stock":true},{"title":"pH 7.00, 300ml","offer_id":60146785616256,"sku":"GTPBSB7300","price":3.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6529\/3075\/files\/GrowthTechnologyPHBuffer02.png?v=1793884261"},{"product_id":"grow-gadgets-digital-ph-meter-pen","title":"Grow Gadgets Digital pH Meter Pen","description":"\u003cp\u003eThe Grow Gadgets pH pen is a simple \u003cstrong\u003edigital pH meter for plants\u003c\/strong\u003e: switch it on, dip it in the water or feed, and read the number. No colour charts and no squinting at test strips.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eIt is a lovely first meter for anyone starting out with hydroponics, rainwater butts or fussy houseplants that like their water just so.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch2\u003eA simple digital pH meter for plants and hydroponics\u003c\/h2\u003e\n\u003cp\u003eThe pen covers the full pH scale from 0 to 14 and adjusts for water temperature automatically, so a cold tap reading and a warm reservoir reading are both fair.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eWhen the electrode eventually wears out, it can be replaced rather than throwing the whole meter away, which is kinder to your purse and the planet. Pair it with our pH buffer solution and a bottle of gentle pH down, and you have everything you need.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhen a pH pen comes in handy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eChecking water for a countertop herb garden or hydroponic bucket\u003c\/li\u003e\n\u003cli\u003eTesting rainwater and tap water for ericaceous plants like blueberries\u003c\/li\u003e\n\u003cli\u003eAdjusting feed for tomatoes, chillies and salad\u003c\/li\u003e\n\u003cli\u003eA hands-on science lesson about acids and alkalis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eWhy this pH pen is so easy\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull 0 to 14 range.\u003c\/strong\u003e Reads anything from lemon juice to washing soda.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic temperature compensation.\u003c\/strong\u003e Fair readings in cool or warm water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-button use.\u003c\/strong\u003e Switch on, dip, read; an off button saves the battery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable electrode.\u003c\/strong\u003e Swap the sensor rather than the whole pen.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery powered.\u003c\/strong\u003e Small and light enough to keep in the potting shed drawer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003epH pen questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat pH should water be for plants?\u003c\/strong\u003e\u003cbr\u003e\nMost plants like slightly acidic water. Aim for pH 5.5 to 6.5 in hydroponics, and around 6.0 to 7.0 for compost-grown plants.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eCan I test soil with a pH pen?\u003c\/strong\u003e\u003cbr\u003e\nA pen like this is designed for liquids. Mix a little compost with distilled water, let it settle and test the water.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I calibrate it?\u003c\/strong\u003e\u003cbr\u003e\nUse pH 4 and pH 7 buffer solution and adjust the pen until it reads correctly. Do it every few weeks.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I store the pen?\u003c\/strong\u003e\u003cbr\u003e\nRinse the tip in clean water, replace the cap and keep it out of direct sun.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eThe details\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasures\u003c\/th\u003e\n\u003ctd\u003epH of water and liquid feed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRange\u003c\/th\u003e\n\u003ctd\u003epH 0 to 14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTemperature compensation\u003c\/th\u003e\n\u003ctd\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eElectrode\u003c\/th\u003e\n\u003ctd\u003eReplaceable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDisplay\u003c\/th\u003e\n\u003ctd\u003eDigital LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003eBattery powered; no mains plug needed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eGrow Gadgets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cp\u003eOne digital pH pen with protective cap.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eOne dip, one number, happier plants. Simple as that.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Grow Gadgets","offers":[{"title":"Default Title","offer_id":60146785649024,"sku":"GGDPHMP","price":21.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6529\/3075\/files\/PHProMeter01.jpg?v=1793884261"}],"url":"https:\/\/theindoorgardencentre.co.uk\/collections\/hydroponics-self-watering.oembed","provider":"The Indoor Garden Centre","version":"1.0","type":"link"}